NET INCOME PER SHARE

12 Months Ended

Dec. 31, 2021

Basic and diluted net income per share was as follows:


	Years Ended December 31,
Dollars in thousands, except per share amounts	2021		2020		2019
Basic net income per share:
Net income	$	169,075	$	133,892	$	50,201
Weighted average common shares outstanding	84,698		84,650		85,637
Basic net income per common share	$	2.00	$	1.58	$	0.59

Diluted net income per share:
Net income	$	169,075	$	133,892	$	50,201

Weighted average common shares outstanding — Basic	84,698		84,650		85,637
Effect of dilutive securities:
Stock options and restricted stock	787		577		857
Weighted average common shares for diluted earnings per share	85,485		85,228		86,494
Diluted net income per common share	$	1.98	$	1.57	$	0.58

Common stock of approximately 0.1 million and 0.3 million shares at December 31, 2021, and 2020 that are issuable through exercise of dilutive securities, respectively, and were not included in the computation of diluted net income per share because their effect would have been anti-dilutive.

Performance Shares and Restricted Units that entitle the holders to approximately 0.5 million shares of common stock are included in the basic and diluted weighted average shares outstanding calculation from their date of issuance because no further consideration is due related to the issuance of the underlying common shares.